Concrete casing for piles



March 11, 1924. 1,486,414

W. W BRIER CONCRETE CASING FOR FILES Filed Jan. 31. 1.922

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WILLIAM W. BBIER, F LOS ANGELES, CALIFORNIA.

CONCRETE CASING FOR PILES.

Application filed January 31, 1922. Serial No. 532,984.

To all whom it may concern:

Be it known that I, WILLIAM W. BRIER. a citizen of the United States,resident of Los Angeles, in the county of Los Angeles and State ofCalifornia, have invented new and useful Improvements in a ConcreteCasing for Piles, of which the following is a specification.

This invention relates to a reinforced concrete casing adapted to beplaced about wooden piles and the like.

Wooden piles are subject to disintegration when placed in salt water dueto certain marine life attacking the same. The result is thatstructures, such as wharves and docks, built with wooden piles as afoundation become weakened in time and collapse. It is often foundadvisable to cover piles with a casing of material such as cement orconcrete. Covering the piles with such cementitious material withoutdisturbing the structure is a dilficult and laborious process.

The objects of this invention are first, to provide an article in theform of a casing, which may be easily placed in position; second, toprovide a casing which may be applied to the pile in sections; third, toprovide a split casing which may be placed about the pile embracing itand then looked; and fourth, to provide a casing which can be easily andeconomically manufactured, and permit easy handling of the same.

These objects together with other objects and correspondingaccomplishments are obtained by means of the embodiment of my inventionillustrated in the accompanying drawing, in which:

Fig. 1 is a perspective view of one section of my improved casing withparts in locked position; and Fig. 2 is an enlarged transverse sectionthrough Fig. 1, the dotted line showing the position of the casing whenopen.

The casing is made up of sections of reinforced concrete pipe. Eachsection has a reinforcement consisting of wire extendingcircumferentially. A preferable manner of reinforcing consists offorming a cage of a spirally wound wire, with the convolutions separatedby longitudinally extending spacing bars. In the drawing, the spacingbars are not shown, but the spirally wound wire is indicated by 3. Thepipe is cast by plac ing the reinforcement in a suitable mold andpouring concrete about the same. The mold is such that the pipe is castwith two longitudinally extending and diametrically disposed slots 4 and5, the spiral reinforcement being exposed at the slots. Thereinforcement is then cut at one of the slots and r the cut ends turnedto form hooks indicated by 6. The reinforcement at the opposite slotserves as a hinge so that the section may be opened as shown in dottedlines in Fig. 2.

A casing may be made in any suitable style. Thus, each section may havea spigot end 7 adapted to fit into the bell end 8 of the adjoiningsection. The sections may be locked together in any approved manner.Itis evident that the casing being in the form of a cylinder or pipe canbe easily moved by rolling it into position for placing about the pile.The casing section is then opened, placed about the pile and thenclosed. Links 9 are hooked over the ends of contiguous reinforcementwires to lock the section about the pile. The space between the pile andthe casing may be filled with concrete, and the slots 4 and 5 alsofilled to form a complete cylinder. However, the method of applying thecasing to the pile is immaterial.

What I claim is:

1. An article of the character described comprising a casing ofcementitious material longitudinally divided to form two parts,

a circumferentially extending reinforcement of flexible material unitingsaid parts at one division so as to form a hinge joint and divided atthe other division to split the casing, and means to secure the ends ofsaid reinforcement at said second division.

2. An article of the character described comprising a hollow cylinder ofcementitious material longitudinally divided into halves, acircumferentially extending reinforcement of flexible material unitingthe halves at one division so as to form a hinged joint and separated atthe other division to split said cylinder, and means to secure divisionso as to form a hinged joint and the ends of said reinforcement at saidsplit separated at the other division to split said 10 division.cylinder, and means to secure the ends oi 3. An article of the characterdescribed said reinforcement at said split division.

5 comprising a hollow cylinder of concrete In Witness that I claim theforegoing I longitudinally divided into halves, a circumhave hereuntosubscribed my name this 21st ferentially extending reinforcement offlexiday of January, 1922. 7 his metal Wire uniting the halves at oneWILLIAM W. BRIER. e

